INFLUENCE OF BODY-WEIGHT SUPPORT ON NORMAL HUMAN GAIT - DEVELOPMENT OF A GAIT RETRAINING STRATEGY
INFLUENCE OF BODY-WEIGHT SUPPORT ON NORMAL HUMAN GAIT - DEVELOPMENT OF A GAIT RETRAINING STRATEGY
复制标题
DOI：
10.1093/ptj/71.11.842
复制
发表时间：
1991-11-01
期刊：
影响因子：
3.2
通讯作者：
ARSENAULT, B
中科院分区：
文献类型：
--
作者：
FINCH, L;BARBEAU, H;ARSENAULT, B
成年脊椎猫在进行分级重量支持的互动训练后运动能力的恢复，使人们提出，去除体重可能是人类步态再训练的一种治疗工具。然而，在将这种策略应用于患者之前，了解人类对部分负重的正常反应将是有益的。在这项研究中，10名非残疾男性受试者在跑步机上行走，他们的体重的0%，30%，50%和70%由改良的攀岩带支撑。为了将步行速度的变化与体重的变化分离开来，每个受试者在指定的体重支撑（BWS）水平和完全负重（FWB）下以相同的速度行走。同时采集右腿肌肉肌电图数据、脚开关信号和关节运动录像。FWB和BWS步态相似，除了所研究的BWS最高水平（即BWS的70%）。在同等速度下，其他BWS和FWB试验的显著差异包括站姿百分比、总双下肢支撑时间百分比和髋膝屈肌最大摆动角度的减少。对BWS的其他适应是站立时活跃肌肉的平均爆发幅度的减少和胫骨前肌的平均爆发幅度的增加。讨论了这种新的步态再训练策略对神经损伤患者的可能影响。[j]，刘建平，张建平，等。人体负重支撑对人体步态的影响[j]。
The recovery of locomotion, following interactive training with graded weight support, in the adult spinal cat has led to the proposal that removal of body weight may be a therapeutic tool in human gait retraining. There would be benefits, however, in knowing normal responses of humans to partial weight bearing before applying this strategy to patients. In this study, 10 nondisabled male subjects walked on a treadmill while 0%, 30%, 50%, and 70% of their body weight was supported by a modified climbing harness. To dissociate the changes attributable to walking speed from those attributable to body weight, each subject walked at the specified body-weight-support (BWS) levels and at full weight bearing (FWB) at the same speed. Simultaneously, electromyographic data from the right leg muscles, footswitch signals, and video recording of joint motion were collected. The FWB and BWS gaits appeared similar, except at the highest level of BWS studied (ie, 70% of BWS). Significant differences among other BWS and FWB trials at comparable speeds included decreases in percentage of stance, percentage of total double-limb support time, and maximum hip and knee flexor swing angle. Other adaptations to BWS were a reduction in the mean burst amplitude of the muscles that are active during stance and an increase in the mean burst amplitude of the tibialis anterior muscle. The possible implications of this new gait retraining strategy for patients with neurological impairment are discussed. [Finch L, Barbeau H, Arsenault B. Influence of body weight support on normal human gait: development of a gait retraining strategy.